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American Journal of Epidemiology Vol. 154, No. 12 : 1105-1106
Copyright © 2001 by The Johns Hopkins University School of Hygiene and Public Health

NUTRITIONAL EPIDEMIOLOGY

Subar et al. Respond to "A Further Look at Dietary Questionnaire Validation" and "Another Perspective on Food Frequency Questionnaires"

Amy F. Subar1, Frances E. Thompson1 and Victor Kipnis2

1 Applied Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, MD.
2 Biometry Research Group, Division of Cancer Prevention, National Cancer Institute, Bethesda, MD.

We thank Drs. Willett (1Go) and Block (2Go) for their thoughtful comments. Our goal in creating the Diet History Questionnaire was to improve the accuracy of food frequency questionnaires. Table 7 of our paper (3Go) indicates that, in comparing food frequency questionnaires with recalls, we were successful but that the improvement was small. Although we should continue to improve food frequency questionnaires, we agree with Dr. Willett that perhaps there is a ceiling on their ability to accurately measure diet.

For surveillance and public health, knowledge of absolute intakes is essential, as indicated by Dr. . . . [Full Text of this Article]

NOTES

REFERENCES


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Related articles in Am. J. Epidemiol.:

Food Frequency Dietary Assessment: How Bad Is Good Enough?
Tim Byers
Am. J. Epidemiol. 2001 154: 1087-1088. [Extract] [FREE Full Text]  

Comparative Validation of the Block, Willett, and National Cancer Institute Food Frequency Questionnaires : The Eating at America's Table Study
Amy F. Subar, Frances E. Thompson, Victor Kipnis, Douglas Midthune, Paul Hurwitz, Suzanne McNutt, Anna McIntosh, and Simon Rosenfeld
Am. J. Epidemiol. 2001 154: 1089-1099. [Abstract] [FREE Full Text]  

Invited Commentary: A Further Look at Dietary Questionnaire Validation
Walter Willett
Am. J. Epidemiol. 2001 154: 1100-1102. [Extract] [FREE Full Text]  

Invited Commentary: Another Perspective on Food Frequency Questionnaires
Gladys Block
Am. J. Epidemiol. 2001 154: 1103-1104. [Extract] [FREE Full Text]  



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